def abc(a: int, c = [1,2]):
"""_summary_
Parameters
----------
a : int
_description_
c : list, optional
_description_, by default [1,2]
Returns
-------
_type_
_description_
Raises
------
AssertionError
_description_
"""
if a > 10:
raise AssertionError("a is more than 10")
return c